It's Robot Arm.
Chalker Wrote:
We are very sensitive to cost issues and try to ensure the rules don't give any significant benefit to 'throwing more money' at a problem. I've said time and time again that practice is far more important than price in these events, and history has shown repeated examples of that being the case.
As for expanding the documentation requirement, the biggest issue we have to deal with there is the burden it places on the event supervisors. There is only so much time they have per team to judge and grade things. And they aren't going to be an expert in every possible component / item. So we have to strike a balance between trying to ensure competitors actually built the devices they show up with, and not over-analyzing every little aspect of each device.
However, as always, I'm open to discussing specific suggestions / examples of how to improve on the existing rules.
As a coach of a middle of the road team, I feel like Robot arm is one the worst events for more expensive equipment yielding better results. At least that's my perception. The reasons for this are:
1. More powerful and expensive motors and servos allow greater reach for the arm. This can be overcome by design but those designs are more difficult to build and control.
2. 5 degrees of freedom is significantly better than 4 (usually a wrist for the claw) and 6 channel remotes are more expensive than 4 channel.
3. A standard remote control(which many teams have) is a less effects than a type of knob control system which would be an additional expense to build or buy for most teams.
Some possible ways to make it less cost dependent:
1. Reduce the size of the playing field so that standard motors and servos can reach the furthest important areas with some counter forces. Perhaps adding more things to sort to keep the overall difficulty about the same.
2. Allow human powered hydraulics like this (
http://www.pitsco.com/T-bot_II_Hydraulic_Arm from pitsco. This would also make it mirror real robotic arms more closely as most of those are hydraulic powered I believe but powered hydraulic systems would be expensive. A rule would probably need to be added to make sure all wires or tubes must leave out of the back of the robot area.
3. Allow human power via strings and pulleys (Again rules to ensure the strings and pulley can only leave out of the back). I just think it would be really cool to see an arm pick up things using cranks and pulleys.
4. Make if robocross or robot ramble. Those event have the same problems but they are not as extreme as in robot arm.
One other suggestion about electric vehicle
If electronic control is going to be allowed don't limit what types will be allowed by limiting the battery voltage. Basically if a team has mind storms or vex let them use it otherwise they have to spend more to get a new system. I understand it would be an advantage over teams that didn't have them but it is no greater advantage than if they went out and bought a different system. Thanks and if I'm totally off base on any of these points.